Table 2.

Number of planned contact moments with Child and Youth Health Care (CYCH), number of LucKi questionnaires, and main (research) topics in different age periods

	0-1	1-4	4-12	12-19
	years	years	years	years
Number of routine contact moments CYHC	9	5	3	2
Number of LucKi questionnaires	2	2	2	1
Main topics CYHC
General physical examination	++	++	++	++
Growtha	++	++	++	++
Overweight & obesity	+	+	+	+
Pre-/peri-/postnatal complications	++
Family history of diseases/disorders	++
(Mal) nutrition	++	++	+	+
Vision & hearing	+	+	+	+
Motor developmentb	+	++	+	+
Language development		+	++
Social class & family functioning	++	++	++	+
Emotional & social development	+	++	++	+
Learning disabilities			++	+
Behavioural problems		+	+	+
Child abuse & neglect	++	++	++	+
Addiction			+	++
Main topics LucKi questionnaires
Parental medical history	+
Circumstances around pregnancy & birth	++
Parental lifestyle characteristics	++	+
Eczema, wheeze/asthma, hay feverc	++	++	++	++
Infections, diarrhoea, fever	++	++	+	+
Other diseases	+	+	++	++
Medication use	+	+	+	+
Diet	++	++	++	++
Physical activity		+	+	+
Day care attendance	+	+
Indoor environment	+	+	+	+
Outdoor environment	+		+
School absence			+	+

++ high level of interest; + routine level of interest

^a Standardised height, weight, and head or waist circumference measurements by trained personnel at each visit

^b Van Wiechen classification of psychomotor development [13]

^c ISAAC (the International Study of Asthma and Allergies in Childhood) core questions [10]